--- title: "CEFAS24-145 Request for Quotation for Bathymetry Surveys at Sizewell C" ocid: "ocds-b5fd17-9fdd9be0-7f0a-470f-a3eb-d03fca136d5d" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-9fdd9be0-7f0a-470f-a3eb-d03fca136d5d" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-9fdd9be0-7f0a-470f-a3eb-d03fca136d5d.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-9fdd9be0-7f0a-470f-a3eb-d03fca136d5d.json" source: "Contracts Finder" current_stage: "Tender" buyer: "CEFAS" published: "2024-12-19" --- # CEFAS24-145 Request for Quotation for Bathymetry Surveys at Sizewell C Buyer: CEFAS Current stage: Tender OCID: ocds-b5fd17-9fdd9be0-7f0a-470f-a3eb-d03fca136d5d [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-9fdd9be0-7f0a-470f-a3eb-d03fca136d5d) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-9fdd9be0-7f0a-470f-a3eb-d03fca136d5d.json) ## Summary The Centre for Environment, Fisheries, and Aquaculture Science (Cefas) has issued a Request for Quotation titled "CEFAS24-145 Request for Quotation for Bathymetry Surveys at Sizewell C" under the industry category of Survey Services. The project involves conducting two Multibeam Echosounder (MBES) bathymetric surveys within the Greater Sizewell Bay (GSB) in 2025 to monitor geomorphological changes in the area. The procurement stage is currently at the tender phase, with submissions due by 17 January 2025, and the contract period running from 24 January 2025 to 31 December 2025. The surveys are planned for April and July 2025, focusing on nearshore transects during spring tides to maximise landward coverage. This tender offers substantial opportunities for businesses specialising in bathymetric surveying and marine data collection. Small and medium-sized enterprises are encouraged to apply, as the suitability criteria specify that SMEs are welcome. The open procurement method allows for wide competition, ensuring opportunities for businesses to showcase their innovative surveying techniques and data accuracy. Firms with experience in detailed marine surveys and possessing the required equipment will find this tender particularly advantageous, with a project value estimated between GBP 80,000 and GBP 100,000, making it a lucrative endeavour for experienced providers. ## Notice Background: The BEEMS (British Energy Estuarine and Marine Studies) programme is funded by Sizewell C Limited. Through this programme, Cefas provide authoritative scientific information on the marine and transitional waters in the vicinity of potential new build nuclear power stations and require the Supplier to deliver the elements described below. Requirement: The purpose of this project is to provide bathymetric data for the Greater Sizewell Bay (GSB) to assess the geomorphological changes of the region, hence contributing to the ongoing monitoring of the Sizewell Coastline. Cefas require two Multibeam Echosounder (MBES) bathymetric surveys to IHO Special Order (at a minimum) within the Greater Sizewell Bay (GSB) in 2025. Exact survey locations will be agreed between Cefas and the supplier during the pre-survey kick off meetings. Survey 1 will be in April 2025 and will require nearshore transects to be undertaken to assess the geomorphological changes shown by two longshore bars. Therefore, care should be taken to maximise landward extent, and the survey should be undertaken during a Spring tide window to extend the coverage in the landward sense as far as practicable. Three further East to West Corridors ('Radar Calibration Corridors') are included in the scope for Multibeam survey (Figure 1). For areas of survey overlap between nearshore or calibration corridors, the expectation is that coverage shall only be acquired once, and hence supplier's should provide details of a proposed survey plan to meet this requirement and ensure that there are no gaps in coverage. Survey 2 would be undertaken in July 2025. The final area to be surveyed will be confirmed by Cefas in spring 2025, but will broadly cover the area between the two lines in Figure 2. The expected maximum survey extent would be 2 km2 but this may be reduced once areas of interest are identified, so therefore expected that this survey to be costed per day. This survey is likely to be required on spring tides to enable any shallow water areas to be accessed. Survey Strategy: Cefas aim to confirm the finalised survey areas in a kick-off meeting with the supplier prior to each of the surveys. The supplier should note that the survey due to occur in April 2025 will be required on Spring Tides. The supplier should provide a line plan two weeks prior to the survey for Cefas to review and provide comment. The regular system of sounding lines shall be supplemented by a series of crosslines for verifying and evaluating the accuracy and reliability of surveyed depths and plotted locations in April. In July, a survey plan and/or dynamic line plans will be required but can be provided nearer the time of survey. The spacing between crosslines should typically be no more than 15 times that of the main sounding lines. For full details Download the Bidder Pack at https://defra-family.force.com/s/Welcome and search for CEFAS24-145 under opportunities. ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/6ad90929-f315-4a48-bf8f-b65adb8035ad | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Services | | Procurement method | Open | | Procurement method details | Open procedure (below threshold) | | Tender suitability | SME | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 19 Dec 2024 | | Submission deadline | 17 Jan 2025 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 24 Jan 2025 - 31 Dec 2025 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £100,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | CEFAS | | Locality | LOWESTOFT | | Post town | Norwich | | Postcode | NR33 0HT | | Country | England | | ITL 1 | TLH East (England) | | ITL 2 | TLH6 Suffolk | | ITL 3 | TLH63 East Suffolk | | Local authority | East Suffolk | | Electoral ward | Kirkley & Pakefield | | Westminster constituency | Lowestoft | | Delivery location | Not specified | ## CPV Codes ### Divisions - 79 - Business services: law, marketing, consulting, recruitment, printing and security ### Codes - 79311000 - Survey services ## Release History - 19 Dec 2024 at 10:58 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/6ad90929-f315-4a48-bf8f-b65adb8035ad - 11 Dec 2024 at 10:07 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/e66bde63-7de4-4beb-842b-19b354c4e6ea ## Documents - https://www.contractsfinder.service.gov.uk/Notice/6ad90929-f315-4a48-bf8f-b65adb8035ad 19th December 2024 - Opportunity notice on Contracts Finder - https://www.contractsfinder.service.gov.uk/Notice/e66bde63-7de4-4beb-842b-19b354c4e6ea 11th December 2024 - Opportunity notice on Contracts Finder ## Notice URLs - https://defra-family.force.com/s/Welcome ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. 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